https://community.appian.com/support/w/kb/1221/kb-1781-apache-fails-to-start-with-unable-to-start-due-to-shared-memory-failure-erroren-USTelligent Community 12https://community.appian.com/support/w/kb/1221/kb-1781-apache-fails-to-start-with-unable-to-start-due-to-shared-memory-failure-errorMon, 12 Nov 2018 04:45:45 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:5f9c16b3-5c4e-4985-bc2b-fe300e225f73Parmida Borhanihttps://community.appian.com/support/w/kb/1221/kb-1781-apache-fails-to-start-with-unable-to-start-due-to-shared-memory-failure-error#commentsCurrent Revision posted to Appian Knowledge Base by Parmida Borhani on 11/12/2018 4:45:45 AM<br /> <h2>Symptoms</h2> <p>Apache Web Server has been configured to work with Appian. The instructions in the <a href="https://docs.appian.com/suite/help/latest/Configuring_Apache_Web_Server_with_Appian.html">Configuring Apache Web Server with Appian</a> have been followed exactly, but Apache fails to start with the following error in the&nbsp;<strong>mod_jk.log</strong>:</p> <pre>[jk:warn] [pid XXXX] No JkShmFile defined in httpd.conf. Using default &lt;APACHE_HOME&gt;/logs/jk-runtime-status<br />[jk:emerg] [pid XXXX] Initializing shm:&lt;APACHE_HOME&gt;/logs/jk-runtime-status.XXXX errno=13. Unable to start due to shared memory failure.</pre> <p>The following are all true on the environment:</p> <ul> <li>SELinux is enabled.</li> <li>Prior to configuring Apache to work with Appian, Apache was able to start successfully.</li> </ul> <h2>Cause</h2> <p>SELinux may be configured to block shared memory access in the&nbsp;<code>&lt;APACHE_HOME&gt;/logs/</code>&nbsp;directory.</p> <h2>Action</h2> <p>Work with a System Administrator to modify SELinux permissions to allow shared memory access in the <code>&lt;APACHE_HOME&gt;/logs/</code> directory.</p> <h2>Affected Versions</h2> <p>This article applies to all versions of Appian using Linux as the operating system.</p> <p>Last Reviewed: November 2018</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: apache, web server, SELinux, linux, infrastructure</div> https://community.appian.com/support/w/kb/1221/kb-1781-apache-fails-to-start-with-unable-to-start-due-to-shared-memory-failure-error/revision/5Sun, 11 Nov 2018 23:44:50 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:5f9c16b3-5c4e-4985-bc2b-fe300e225f73Parmida Borhanihttps://community.appian.com/support/w/kb/1221/kb-1781-apache-fails-to-start-with-unable-to-start-due-to-shared-memory-failure-error#commentsRevision 5 posted to Appian Knowledge Base by Parmida Borhani on 11/11/2018 11:44:50 PM<br /> <h2>Symptoms</h2> <p>Apache Web Server has been configured to work with Appian. The instructions in the <a href="https://docs.appian.com/suite/help/latest/Configuring_Apache_Web_Server_with_Appian.html">Configuring Apache Web Server with Appian</a> have been followed exactly, but Apache fails to start with the following error in <strong>mod_jk.log</strong>:</p> <pre>[jk:warn] [pid XXXX] No JkShmFile defined in httpd.conf. Using default &lt;APACHE_HOME&gt;/logs/jk-runtime-status<br />[jk:emerg] [pid XXXX] Initializing shm:&lt;APACHE_HOME&gt;/logs/jk-runtime-status.XXXX errno=13. Unable to start due to shared memory failure.</pre> <p>The following are all true on the environment:</p> <ul> <li>SELinux is enabled.</li> <li>Prior to configuring Apache to work with Appian, Apache was able to start successfully.</li> </ul> <h2>Cause</h2> <p>SELinux may be configured to block shared memory access in the&nbsp;<code>&lt;APACHE_HOME&gt;/logs/</code>&nbsp;directory.</p> <h2>Action</h2> <p>Work with a System Administrator to modify SELinux permissions to allow shared memory access in the <code>&lt;APACHE_HOME&gt;/logs/</code> directory.</p> <h2>Affected Versions</h2> <p>This article applies to all versions of Appian using Linux as the operating system.</p> <p>Last Reviewed: November 2018</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: apache, web server, SELinux, linux, infrastructure</div> https://community.appian.com/support/w/kb/1221/kb-1781-apache-fails-to-start-with-unable-to-start-due-to-shared-memory-failure-error/revision/4Sun, 11 Nov 2018 18:25:18 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:5f9c16b3-5c4e-4985-bc2b-fe300e225f73Tom Ryanhttps://community.appian.com/support/w/kb/1221/kb-1781-apache-fails-to-start-with-unable-to-start-due-to-shared-memory-failure-error#commentsRevision 4 posted to Appian Knowledge Base by Tom Ryan on 11/11/2018 6:25:18 PM<br /> <h2>Symptoms</h2> <p>Apache Web Server has been configured to work with Appian. The instructions in the <a href="https://docs.appian.com/suite/help/latest/Configuring_Apache_Web_Server_with_Appian.html">Configuring Apache Web Server with Appian</a> have been followed exactly, but Apache fails to start with the following error in <code>mod_jk.log</code>:</p> <pre>[jk:warn] [pid XXXX] No JkShmFile defined in httpd.conf. Using default &lt;APACHE_HOME&gt;/logs/jk-runtime-status<br />[jk:emerg] [pid XXXX] Initializing shm:&lt;APACHE_HOME&gt;/logs/jk-runtime-status.XXXX errno=13. Unable to start due to shared memory failure.</pre> <p>The following are all true on the environment:</p> <ul> <li>SELinux is enabled.</li> <li>Prior to configuring Apache to work with Appian, Apache was able to start successfully.</li> </ul> <h2>Cause</h2> <p>SELinux may be configured to block shared memory access in the&nbsp;<code>&lt;APACHE_HOME&gt;/logs/</code>&nbsp;directory.</p> <h2>Action</h2> <p>Work with a System Administrator to modify SELinux permissions to allow shared memory access in the <code>&lt;APACHE_HOME&gt;/logs/</code> directory.</p> <h2>Affected Versions</h2> <p>This article applies to all versions of Appian using Linux as the operating system.</p> <p>Last Reviewed: November 2018</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: apache, web server, SELinux, linux, infrastructure</div> https://community.appian.com/support/w/kb/1221/kb-1781-apache-fails-to-start-with-unable-to-start-due-to-shared-memory-failure-error/revision/3Fri, 09 Nov 2018 17:38:07 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:5f9c16b3-5c4e-4985-bc2b-fe300e225f73Zach Puderbachhttps://community.appian.com/support/w/kb/1221/kb-1781-apache-fails-to-start-with-unable-to-start-due-to-shared-memory-failure-error#commentsRevision 3 posted to Appian Knowledge Base by Zach Puderbach on 11/9/2018 5:38:07 PM<br /> <h2>Symptoms</h2> <p>Apache Web Server has been configured to work with Appian. The instructions in the <a href="https://docs.appian.com/suite/help/latest/Configuring_Apache_Web_Server_with_Appian.html">Configuring Apache Web Server with Appian</a> have been followed exactly, but Apache fails to start with the following error in <code>mod_jk.log</code>:</p> <pre>[jk:warn] [pid XXXX] No JkShmFile defined in httpd.conf. Using default &lt;APACHE_HOME&gt;/logs/jk-runtime-status<br />[jk:emerg] [pid XXXX] Initializing shm:&lt;APACHE_HOME&gt;/logs/jk-runtime-status.XXXX errno=13. Unable to start due to shared memory failure.</pre> <p>The following are all true on the environment:</p> <ul> <li>SELinux is enabled.</li> <li>Prior to configuring Apache to work with Appian, Apache was able to start successfully.</li> </ul> <h2>Cause</h2> <p>SELinux is configured to block shared memory access in the&nbsp;<code>&lt;APACHE_HOME&gt;/logs/</code>&nbsp;directory.</p> <h2>Action</h2> <p>Work with a System Administrator to modify SELinux permissions to allow shared memory access in the <code>&lt;APACHE_HOME&gt;/logs/</code> directory.</p> <h2>Affected Versions</h2> <p>This article applies to all versions of Appian using Linux as the operating system.</p> <p>Last Reviewed: November 2018</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: apache, web server, SELinux, linux, infrastructure</div> https://community.appian.com/support/w/kb/1221/kb-1781-apache-fails-to-start-with-unable-to-start-due-to-shared-memory-failure-error/revision/1Fri, 09 Nov 2018 17:34:35 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:5f9c16b3-5c4e-4985-bc2b-fe300e225f73Zach Puderbachhttps://community.appian.com/support/w/kb/1221/kb-1781-apache-fails-to-start-with-unable-to-start-due-to-shared-memory-failure-error#commentsRevision 1 posted to Appian Knowledge Base by Zach Puderbach on 11/9/2018 5:34:35 PM<br /> <h2>Symptoms</h2> <p>Apache Web Server has been configured to work with Appian. The instructions in the <a href="https://docs.appian.com/suite/help/latest/Configuring_Apache_Web_Server_with_Appian.html">documentation</a> have been followed exactly, but Apache fails to start with the following error in <code>mod_jk.log</code>:</p> <pre>[jk:warn] [pid XXXX] No JkShmFile defined in httpd.conf. Using default &lt;APACHE_HOME&gt;/logs/jk-runtime-status<br />[jk:emerg] [pid XXXX] Initializing shm:&lt;APACHE_HOME&gt;/logs/jk-runtime-status.XXXX errno=13. Unable to start due to shared memory failure.<br /><br /></pre> <p>The following are all true on the environment:</p> <ul> <li>SELinux is enabled.</li> <li>Prior to configuring Apache to work with Appian, Apache was able to start successfully.</li> </ul> <h2>Cause</h2> <p>SELinux is configured to block shared memory access in the&nbsp;<code>&lt;APACHE_HOME&gt;/logs/</code>&nbsp;directory.</p> <h2>Action</h2> <p>Work with a System Administrator to modify SELinux permissions to allow shared memory access in the <code>&lt;APACHE_HOME&gt;/logs/</code> directory.</p> <h2>Affected Versions</h2> <p>This article applies to all versions of Appian using Linux as the operating system.</p> <p>Last Reviewed: November 2018</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: apache, web server, SELinux, linux, infrastructure</div> https://community.appian.com/support/w/kb/1221/kb-1781-apache-fails-to-start-with-unable-to-start-due-to-shared-memory-failure-error/revision/2Fri, 09 Nov 2018 12:34:43 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:5f9c16b3-5c4e-4985-bc2b-fe300e225f73Zach Puderbachhttps://community.appian.com/support/w/kb/1221/kb-1781-apache-fails-to-start-with-unable-to-start-due-to-shared-memory-failure-error#commentsRevision 2 posted to Appian Knowledge Base by Zach Puderbach on 11/9/2018 12:34:43 PM<br /> <h2>Symptoms</h2> <p>Apache Web Server has been configured to work with Appian. The instructions in the <a href="https://docs.appian.com/suite/help/latest/Configuring_Apache_Web_Server_with_Appian.html">documentation</a> have been followed exactly, but Apache fails to start with the following error in <code>mod_jk.log</code>:</p> <pre>[jk:warn] [pid XXXX] No JkShmFile defined in httpd.conf. Using default &lt;APACHE_HOME&gt;/logs/jk-runtime-status<br />[jk:emerg] [pid XXXX] Initializing shm:&lt;APACHE_HOME&gt;/logs/jk-runtime-status.XXXX errno=13. Unable to start due to shared memory failure.</pre> <p>The following are all true on the environment:</p> <ul> <li>SELinux is enabled.</li> <li>Prior to configuring Apache to work with Appian, Apache was able to start successfully.</li> </ul> <h2>Cause</h2> <p>SELinux is configured to block shared memory access in the&nbsp;<code>&lt;APACHE_HOME&gt;/logs/</code>&nbsp;directory.</p> <h2>Action</h2> <p>Work with a System Administrator to modify SELinux permissions to allow shared memory access in the <code>&lt;APACHE_HOME&gt;/logs/</code> directory.</p> <h2>Affected Versions</h2> <p>This article applies to all versions of Appian using Linux as the operating system.</p> <p>Last Reviewed: November 2018</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: apache, web server, SELinux, linux, infrastructure</div>